Giro nine 10 mens ski helmet the giro nine 10 mens ski helmet is a must for staying protected in style out on the slopes having protection from the giro nine 10 mens ski helmet lets you enjoy your time feeling relaxed knowing that you are safe a protected the hard outer shell and thick foam inner wall reduces impact forces and helps to cushion the head to reduce chance of injury complete with a soft lining and dual adjustment system for the perfect head fit giro nine 10 mens ski helmet